Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS5824068 A
Publication typeGrant
Application numberUS 08/908,193
Publication dateOct 20, 1998
Filing dateAug 7, 1997
Priority dateDec 22, 1993
Fee statusLapsed
Also published asCA2179718A1, DE69431122D1, DE69431122T2, EP0735845A1, EP0735845B1, WO1995017139A1
Publication number08908193, 908193, US 5824068 A, US 5824068A, US-A-5824068, US5824068 A, US5824068A
InventorsMogens Bugge
Original AssigneeSt. Jude Medical, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
For an artificial heart valve
US 5824068 A
Abstract
A holder for an artificial heart valve includes a holder body, a handle, and a safety member. The holder body is configured to selectively couple to the heart valve. The handle extends from the holder body. The safety member is spaced apart from the holder body, and extends from the handle and is configured to mate with the heart valve in exactly one orientation. The safety member prevents the holder body from mating with the heart valve in other orientations.
Images(4)
Previous page
Next page
Claims(13)
I claim:
1. A holder for an artificial heart valve of the type having an inlet, an outlet and a first valve blade providing a first profile in relation to the inlet and a second profile in relation to the outlet, wherein the first profile and the second profile are different, the holder comprising:
a holder body configured to selectively couple to a heart valve;
a handle extending from the holder body; and
a safety member, spaced apart from the holder body, extending from the handle and configured to mate with exactly one of the profiles when the holder body is in abutted contact with the heart valve, wherein the safety member prevents the holder body from mating with the other profile.
2. A holder according to claim 1 further comprising a first part and a second part, assembled with each other through a joint, and wherein the first part includes the handle.
3. A holder according to claim 2 wherein the second part is firmly fixed to the handle by a suture.
4. A holder according to claim 1 wherein the holder has a size and a shape, and the holder is marked by a color corresponding to the size and shape.
5. A holder according to claim 1 including a safety ring detachably mounted to the holder body and configured to surround an exterior of the heart valve, the safety ring having a shape corresponding to a shape of a periphery of the heart valve.
6. A holder according to claim 5 wherein the holder includes a recess and the safety ring includes a projecting part configured to fit into the recess.
7. A holder according to claim 5 wherein the safety ring includes a first fitting element configured to fit a transportation container for transporting a valve of a certain defined valve type and size.
8. A holder according to claim 7 wherein the first fitting element includes a bar configured to fit into a first recess of the transportation container.
9. A holder according to claim 1 wherein the holder body includes a material which is detectable through X-ray or through emission of detectable radiation.
10. A holder according to claim 1 wherein the safety member is configured to fit between the blade of the heart valve and a valve ring of the heart valve.
11. The holder according to claim 1 wherein the heart valve has a first state in which fluid flows through the heart valve, and a second state in which fluid is blocked from flowing through the heart valve, and wherein the safety member mates with the first profile when the valve is in the first state.
12. The holder according to claim 1 wherein the heart valve has a first state in which fluid flows through the heart valve, and a second state in which fluid is blocked from flowing through the heart valve, and wherein the safety member mates with the second profile when the valve is in the second state.
13. The holder according to claim 1 wherein the heart valve includes a second blade and wherein the safety member is configured to fit between the first and second blades.
Description

This is a File Wrapper Continuation of application Ser. No. 08/663,303, filed as PCT/SE94/01247, Dec. 22, 1994, now abandoned.

The present invention relates to a holder for artificial heart valves, of the type which is firmly but detachably attached to the valve and which is intended to be removed after the valve is correctly placed or operated inside the patient, by breaking a transportation safety whereby the partial foldable holder can be removed

BACKGROUND OF THE INVENTION

Within cardiac surgery, about 20% of the operations are for the implantation of artificial heart valves. Considering the entire world, this implies implantation of at least 100,000 valves per year.

Heart valves are supplied in different sizes from factories in small transportation containers. For each product there is a prosthesis sizer to measure which size to fit into the actual heart. When the test is finished, the actual size and type of valves are obtained and the implantation is carried out.

A holder for artificial heart valves is used for both mechanical valves and for biological valves. The purpose of the holder is to:

1) fix the valve in its container during the transportation, and

2) serve as a handle for a cardiac surgeon and his operation team during the implantation.

There are two main types of valves: a) aortic valves and b) mitral valves. Moreover, these are produced in several different sizes.

If the wrong size or type of valve is used, results can be disastrous, and therefore the identification of the valves are surrounded by security procedures at the operation time.

It is consequently very important that the valves, which are much alike, are implanted in the heart in the correct way and in the correct position, since an incorrectly placed valve can cause death of the patient. Therefore, aortic valves and mitral valves should not be mixed, which can happen in several ways. For example, implanting a mitral valve in an aortic position, or the aortic valve in a mitral position. Another example is implanting a valve turned the wrong way (up and down), which is possible in both positions.

Another type of error that can occur is wrong packing of the product at the factory. Usually, there is an adhesive label on the transport packaging, which indicates the content. At the factory the packaging is surrounded by several security procedures to ensure that the content of the container corresponds to the label on the container.

Another problem with heart valve operations is that the holder or the prosthesis sizer breaks and may leave fragments inside the heart. Also, it has occurred that the entire holder has been forgotten in the heart, where the surgeon believes that it is a part of the heart valve.

THE OBJECTS OF THE INVENTION AND MOST IMPORTANT FEATURES

The object of the present invention is to provide a holder for the heart valve that as much as possible eliminates or reduces such mistakes or problems as mentioned above. Another object of the invention is to prevent the incorrect packaging of the valves provided with the holder already at the production stage, and a third object is to be able to detect a holder or a part thereof, which during the operation could have been dropped.

DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically shows, in a cross-sectional view of a conventional standard holder and an artificial aortic valve.

FIG. 2 shows a cross-sectional view of a holder with a heart valve in an aortic position according to the present invention.

FIG. 3 shows a cross-sectional view of a conventional standard holder for a mitral valve.

FIG. 4 shows a cross-sectional view of a holder with a heart valve for the mitral position according to the present invention placed in a transportation container.

FIG. 5 shows a cross-sectional view of a holder with heart valve according to a modified embodiment, which is provided with a safety ring and placed in a transportation container.

FIG. 6 shows a holder according to FIG. 2 with an aortic prosthesis rigidly sewn to the heart valve.

FIG. 7 shows a holder for a biological heart valve in the aortic position.

DESCRIPTION OF THE EMBODIMENTS

The invention is exemplified below for mechanical valves of double blade or leaflet type, but the same principles can of course be applied to any type of valve holder.

The heart valve itself consists of a valve ring 10, in which two semicircular valve blades 11 are mounted, each on a joint axis 12. Exterior to the valve ring 10 there is a valve cuff 13, which is the `soft` part of the valve, which is sewn firmly (sutured) to the heart.

A valve holder 9 in this example consists of two parts 14 and 15, which are mutually united through a joint 16. The holder 9 is mounted on the valve ring 10 with the valve blade or leaflet in an open position and after mounting, the two parts are held together by a suture 17 around the two handle portions 18,19 of the holder. To remove the holder from the valve, suture 17 is cut and the holder is opened through the joint 16.

As shown in FIG. 2 safety member 20 is provided by means of an extension from the handle portion 19, which continues downwards between two blades 11 of the heart valve in the aortic case, (FIG. 2), and along one side of a blade 11 in the mitral case (FIG. 4), respectively.

Preferably, the holder 9 for the aortic and mitral valves is provided with different colors or color codes, e.g., red for an aortic holder and blue for a mitral holder. This will provide a clear indication for a person who handles the valve. If the person in question is color-blind or does not know the color coding, the holder, valve and packaging are marked with identification symbols. The holder 9 is so designed that it fits into the valve only in one way.

The holders for heart valves are relatively simple objects, generally manufactured of plastics. The holder is manufactured in one or two parts and, concerning the mechanical valve, the holder fits exactly in the opening of the valve, while the holders for biological valves are sutured onto the side of the valve.

Conventional holders for the double bladed heart valves face the problem that they can be mounted from both sides of the valve. When one handles an aortic valve, the holder must be placed on the opening side of the valve, while a mitral valve holder must be placed on the valve closing side. If the valve is positioned incorrectly in the heart, the passage is closed and the heart cannot pump. If the error is detected by the surgeon, the valve must be removed to the correct position, otherwise the patient cannot survive the operation.

To prevent an aortic valve holder being mounted from the wrong side, the safety member 20, according to the present invention, is provided so that it only fits from the opening side. To prevent a mitral valve holder from being mounted on the wrong side, a similar safety member 20 is provided for the mitral holder so that the holder can only be mounted from the closing side.

Although labels of different types are put on the packing or on the valve itself, they are not a guarantee that the correct valve size is used. According to the invention, the size of the valve ring is indicated by the holder, which besides having a visible number infused in the plastic at the production, also has the same color marking as the prosthesis sizer.

To further ensure that a wrong size indication on the valve is not marked on the holder, a safety ring 21 is placed over the valve cuff 13 of the heart valve, as shown in FIG. 5. The safety ring 21 is made of two halves 22, 23 which are held together by a suture 24 and are removed before the valve is sutured firmly to the heart, while the holder 9 itself is removed after the valve has been placed in its final position in the heart.

The safety ring 21 is designed to fit only on one size of the holder. For example, by means of varying length L of a peripheral recess 25 and a corresponding projecting part 26 in the safety ring 21, where the length "L" is different for different valve sizes, such confusion can be avoided. If the holder is made in this way, a larger safety ring 21 cannot fit in the recess 25. Mounting a smaller ring in the holder is not possible, since the outer dimension of the valve is larger than the safety ring, which consequently will not fit across the valve cuff 13. Furthermore, on the holder as well as on the safety ring, a dimension number is infused in plastic and they are of same color.

As shown in FIG. 5, the safety ring 21 has an internal recess 27, the form of which fits the valve cuff 13. Since cuffs in mitral and aortic valves are different, usually with a larger cuff in the mitral valves and with different inclination profiles on the side, the safety ring will be a guarantee that the right type of valve is mounted on the holder. Thus, with this system, a mitral valve cannot be mounted in an aortic holder by mistake and an aortic valve cannot be mounted in a mitral holder, which is the case with present existent systems.

The holder of FIG. 5 guarantees that only valves of the correct size can be mounted on the holder, unlike prior art holders. This is particularly important because valve size is typically written on the packaging, but not on the valve itself.

The invention is very simple and relatively inexpensive. The new holders will not negatively effect the valves.

Generally, artificial heart valves are supplied in a transportation container 28 with the holder mounted to the valve. The holder has a double function, during the transportation it stabilizes the valve, and aids in the suturing of the valve to the heart.

As shown in FIG. 4 the shaft 29 of the holder is equipped with one or more outer fitting elements, which in this embodiment consists of peripheral recesses 30 and bars 31, which have a different width for every desired type and size holder. The transportation container 28 is provided with corresponding recesses 32 and bars 33. By varying the size and the number of the recesses and the distance between these, endless combinations are obtained, which allow only one special type of valve holder to fit the container. Thus, the valve holder cannot simply fit in the container without being of correct type, and confusion is prevented during packaging of the valve.

The recesses 30 and the ledges 31 can also be used for identification of the holder during production, if the tool handling the product is provided with corresponding details.

Also, the safety ring 21 can be provided with a fitting element, which is provided so that only the correct type of valve can fit into the container 28, which is exemplified in FIG. 5.

By providing the valve holder with these simple fitting elements the risk of a valve being placed in a wrong container is eliminated, assuming that the valve holder from the beginning is constructed so that only a correct valve can be mounted on the holder.

Due to different causes, a holder or a part thereof may rarely be left in the area of the operation and cause serious problems. To discover that some strange object of mentioned type is left in the body after the operation, preferably, the holder is made of a material which becomes visible by x-ray on a x-ray plate or screen. Another possibility is to add micro particles, having enough density that it can be detected by means of x-ray, to the plastic material during the manufacture of the holder. A third possibility is that to the exterior of the holder apply (infuse) small plates or the like, which become visible by means of x-ray. It is also possible to "mark" the holder using radiation, so that it can be detected if it should be left in the body.

When implanting the heart valve it can also be desired to change the part of the aorta that is directly connected to the valve. FIG. 6 shows a holder specially constructed for this purpose, which is provided with an extended handle portion 19 that is longer than the aortic prosthesis 34.

In certain cases biological heart valves are used, which require special holders, as shown in FIG. 7, which comprises a base plate 35 with peripheral flanges 36 to which the biological valve 37 is rigidly sewn with sutures. In a similar way as in other embodiments, base plate 35 provides safety member 20, which is provided to extend into the valve. At the handle portion 19, for instance, there is provided fitting elements 30 and 31, for cooperation with corresponding fitting elements of the transportation container.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3409013 *Oct 23, 1965Nov 5, 1968Berry HenryInstrument for inserting artificial heart valves
US3546710 *Dec 12, 1966Dec 15, 1970Konoplev Alexi AlexandrovichCardiac valve prosthesis for sutureless fixation
US3574865 *Aug 8, 1968Apr 13, 1971Michigan Instr IncProsthetic sutureless heart valve
US3763548 *Mar 17, 1972Oct 9, 1973L AndersonMethod of mounting a rotatable suturing member on a device
US3828787 *Sep 8, 1972Aug 13, 1974Medical IncCollet for holding heart valve
US3839741 *Nov 17, 1972Oct 8, 1974Haller JHeart valve and retaining means therefor
US3860005 *Sep 5, 1973Jan 14, 1975Anderson LawrenceCollet for holding heart valve
US3997923 *Apr 28, 1975Dec 21, 1976St. Jude Medical, Inc.Heart valve prosthesis and suturing assembly and method of implanting a heart valve prosthesis in a heart
US4078268 *Sep 7, 1976Mar 14, 1978St. Jude Medical, Inc.Heart valve prosthesis
US4101031 *Dec 16, 1976Jul 18, 1978Medical Engineering Corp.Package for prosthetic heart valve or the like
US4182446 *Jun 12, 1978Jan 8, 1980Hancock Laboratories, Inc.Heart valve holder
US4197593 *Mar 3, 1978Apr 15, 1980Kastec CorporationRotatably positionable heart valve and method
US4211325 *Jun 7, 1979Jul 8, 1980Hancock Laboratories, Inc.Heart valve holder
US4599081 *Sep 30, 1982Jul 8, 1986Cohen Fred MArtificial heart valve
US4655218 *Oct 10, 1985Apr 7, 1987Blagoveschensky Gosudarstuvenny Meditsinsky InstitutProsthetic valve holder
US4680031 *Oct 24, 1984Jul 14, 1987Tascon Medical Technology CorporationHeart valve prosthesis
US4683883 *Apr 30, 1985Aug 4, 1987Hemex Scientific, Inc.Two-piece heart valve holder/rotator
US4705516 *Nov 21, 1983Nov 10, 1987Barone Hector DSetting for a cardiac valve
US4755181 *Oct 8, 1987Jul 5, 1988Matrix Medica, Inc.Anti-suture looping device for prosthetic heart valves
US4790843 *Jun 16, 1986Dec 13, 1988Baxter Travenol Laboratories, Inc.Prosthetic heart valve assembly
US4801015 *Jun 30, 1987Jan 31, 1989Shiley Inc.For storing under sterile conditions
US4863460 *Jan 13, 1988Sep 5, 1989Sta-Set CorporationSuture rings for heart valves
US4865600 *Aug 25, 1981Sep 12, 1989Baxter International Inc.Mitral valve holder
US4932965 *Dec 19, 1988Jun 12, 1990Phillips Steven JArtificial valve, and needle and suture holder and method of using same
US5071431 *Nov 7, 1990Dec 10, 1991Carbomedics, Inc.Suture rings for heart valves and method of securing suture rings to heart valves
US5104406 *Feb 21, 1991Apr 14, 1992Sorin Biomedica S.P.A.Heart valve prosthesis
US5163954 *Feb 21, 1991Nov 17, 1992Sorin Biomedica SpaSuture ring for heart valve prostheses
US5197980 *Aug 13, 1991Mar 30, 1993Gorshkov Jury VCardiac valve prosthesis
US5201880 *Jan 27, 1992Apr 13, 1993Pioneering Technologies, Inc.Mitral and tricuspid annuloplasty rings
US5236450 *Jun 4, 1992Aug 17, 1993Carbon Implants, Inc.Heart valve holder-rotator
US5354330 *Sep 16, 1993Oct 11, 1994Ats Medical Inc.Heart valve prosthesis
US5370685 *Jul 16, 1991Dec 6, 1994Stanford Surgical Technologies, Inc.Endovascular aortic valve replacement
US5403305 *Apr 8, 1993Apr 4, 1995Carbomedics, Inc.Mitral valve prosthesis rotator
US5425705 *Dec 27, 1993Jun 20, 1995Stanford Surgical Technologies, Inc.Thoracoscopic devices and methods for arresting the heart
US5433700 *Nov 30, 1993Jul 18, 1995Stanford Surgical Technologies, Inc.Method for intraluminally inducing cardioplegic arrest and catheter for use therein
US5443502 *Jun 2, 1994Aug 22, 1995Carbomedics, Inc.Rotatable heart valve holder
US5480425 *Jun 9, 1994Jan 2, 1996Carbomedics, Inc.Integrated heart valve rotator and holder
US5531785 *May 6, 1994Jul 2, 1996Autogenics, Inc.Prosthetic heart valve holder
US5582607 *Sep 9, 1994Dec 10, 1996Carbomedics, Inc.Heart valve prosthesis rotator with bendable shaft and drive mechanism
US5713952 *Sep 11, 1995Feb 3, 1998St. Jude Medical, Inc.Apparatus for attachment of heart valve holder to heart valve prosthesis
USRE30507 *Mar 22, 1979Feb 10, 1981 Heart valve prosthesis
GB2181057A * Title not available
SU1690738A1 * Title not available
SU1690739A1 * Title not available
WO1991017720A1 *May 16, 1991Nov 28, 1991Henning Rud AndersenA valve prosthesis for implantation in the body and a catheter for implantating such valve prosthesis
WO1992012688A1 *Jan 25, 1991Aug 6, 1992Z Elektronmash Pri K Bjuro TocHeart valve prosthesis holder
WO1994018881A1 *Jan 10, 1994Sep 1, 1994Stanford Surgical TechnologiesMethod for performing thoracoscopic cardiac bypass procedures
WO1995015715A1 *Nov 18, 1994Jun 15, 1995Stanford Surgical TechnologiesDevices and methods for intracardiac procedures
WO1995017139A1 *Dec 22, 1994Jun 29, 1995Mogens BuggeCardiac valve holders
Non-Patent Citations
Reference
1"Aortic Valve Instructions For Handling and Use", by Medical Incorporated, Mar. 1976.
2 *Aortic Valve Instructions For Handling and Use , by Medical Incorporated, Mar. 1976.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6019790 *Nov 3, 1997Feb 1, 2000St. Jude Medical, Inc.Heart valve holder having a locking collar
US6214043Nov 3, 1997Apr 10, 2001St. Jude Medical, Inc.Releasable hanger for heart valve prosthesis low profile holder
US6309417May 12, 1999Oct 30, 2001Paul A. SpenceHeart valve and apparatus for replacement thereof
US6709457Nov 24, 1999Mar 23, 2004St. Jude Medical, Inc.Attachment of suture cuff to prosthetic heart valve
US6883522Nov 19, 2003Apr 26, 2005Paul A. SpenceHeart valve and apparatus for replacement thereof
US6966925Nov 10, 2003Nov 22, 2005Edwards Lifesciences CorporationHeart valve holder and method for resisting suture looping
US7022141 *Dec 20, 2002Apr 4, 2006Depuy Products, Inc.Alignment device for modular implants and method
US7389874Jul 18, 2005Jun 24, 2008St. Jude Medical, Inc.Heart valve support and storing lid system and methods associated therewith
US7658763Jul 13, 2005Feb 9, 2010Edwards Lifesciences CorporationHeart valve holder and method for resisting suture looping
US7794503Jun 6, 2007Sep 14, 2010Depuy Products, Inc.Trialing system and method for modular hip joint replacement system
US7854737Dec 20, 2002Dec 21, 2010Depuy Products, Inc.Instrument and associated method of trailing for modular hip stems
US8529578Nov 2, 2010Sep 10, 2013DePuy Synthes Products, LLCInstrument and associated method of trialing for modular hip stems
Classifications
U.S. Classification623/2.11, 606/99, 606/108
International ClassificationA61F2/24, A61F2/00, A61B19/02, A61B19/00
Cooperative ClassificationA61F2250/0098, A61B2019/446, A61B2019/0218, A61B2019/444, A61F2/2427, A61F2/0095, A61F2210/0095
European ClassificationA61F2/00P, A61F2/24H
Legal Events
DateCodeEventDescription
Dec 19, 2006FPExpired due to failure to pay maintenance fee
Effective date: 20061020
Oct 20, 2006LAPSLapse for failure to pay maintenance fees
May 10, 2006REMIMaintenance fee reminder mailed
Mar 7, 2002FPAYFee payment
Year of fee payment: 4
Apr 27, 1998ASAssignment
Owner name: GENERAL ELECTRIC COMPANY, NEW YORK
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOFFMAN, DAVID M.;HE, HUI DAVIE;REEL/FRAME:009149/0284;SIGNING DATES FROM 19980402 TO 19980403